The rock mass structural plane orientations is the main geometric feature of analyzing slope stability. The traditional method of measuring rock mass structural plane orientations is using compass to measure. In recent years,the method of measuring structural plane orientations by 3D laser scanner is also quickly developing and been applied,but both of them have their limitations,which can only measure the local structural plane orientations instead of achieving all-dimensional and no dead angle measurement. Compared with the former two methods, the method of UAV photogrammetry can achieve all-dimensional measurement and overcome the shortcomings of the for-mer two methods. Then,the structural plane orientations of the slope in Hanchuan quarry were artificially counted by UAV photogrammetry of three-point method,and the dominant structural plane orientations were divided,which can been acted as the basis for the analysis of the slope stability.%岩体结构面产状是分析边坡稳定性的主要几何特征,传统测量岩体结构面产状的方法为罗盘人工测量.近年来,三维激光扫描仪测量结构面产状的方法也在快速发展并得到应用,但是这两种方法都存在其局限性,只能测量局部结构面产状,无法完成全方位无死角测量.相比前两种方法,无人机摄影测量岩体结构面产状的方法可以实现全方位测量,克服了前两种测量方法的缺点.基于三点法利用无人机摄影测量,人工统计了汉川采石场边坡的结构面产状,并划分了优势结构面产状,为分析边坡稳定性提供了依据.
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